1. The fundamental researches on hydrogen manufacturing from underground coal gasification;Yang;Resour Mater,1990
2. Two-stage underground coal gasification;Kreinin;Coal Chem Ind,1993
3. Franke FH. Survey on experiment laboratory work on UCG, In: Proceedings of the 12th annual underground coal gasification symposium, Washington, DC, USA, 1986. p. 131–3.
4. Beyer LG, Guntermann K, Gudenau HW, Wenzel W, Franke FH. Large scale apparatus for simulating UCG. In: Proceedings of the 12th annual underground coal gasification symposium, Washington, DC, USA, 1986. p. 142–50.
5. Yeary D, Riggs JB. Experimental study of lateral cavity growth mechanisms. In: Proceedings of the 12th annual underground coal gasification symposium. Washington, DC, USA, 1986. p. 158–63.